1. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland Using ESO Reflex to access astronomical WebServices by The Sampo Team

2. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland MAST CDS XML Web Services server Centre de Données astronomiques de Strasbourg Sesame Name Resolver The Multimission Archive at STScI (MAST) Simbad / NED / VizieR In this demo we will show you an example of Web Services used by ESO Reflex. Here you find an ESO Reflex workflow... and three Web Services: * Sesame Name Resolver * MAST archive * WESIX source identification database Let’s move on... Web Enabled Source Identification with X-matching WESIX

3. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland Web Enabled Source Identification with X-matching MAST CDS XML Web Services server Centre de Données astronomiques de Strasbourg Sesame Name Resolver The Multimission Archive at STScI (MAST) Simbad / NED / VizieR ”NGC1365” ”sexconf” User wants to find Hubble information about NGC1365. We have two input parameters. “NGC1365” - The name of the object. “sexconf” – a configuration file for the image analysis package SExtractor run by the WESIX service. WESIX

4. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland Web Enabled Source Identification with X-matching MAST CDS XML Web Services server Centre de Données astronomiques de Strasbourg Sesame Name Resolver The Multimission Archive at STScI (MAST) Simbad / NED / VizieR ”NGC1365”...POS=53.4,-36.14... ”sexconf” Let’s send those parameters to appropriate processors. The sesame-processor sends a request to the Sesame name resolver service which in turn is using Simbad, NED and VizieR databases. The idea is to find the location of the requested object NGC1365. Get info”NGC1365” Now the sesame processor know the values of the RA & Dec of NGC1365. We split the response using local Java widgets XPath_ra and XPath_dec. The MASTSIAP processor will use those values. WESIX

5. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland MAST Sesame Name Resolver The Multimission Archive at STScI (MAST) Simple Image Access Protocol (SIAP) Simbad / NED / VizieR ra=53.4dec=-36.14 ra=53.4,dec=-36.14? <VOTable> POS=53.4,-36.14 MASTSIAP is a subworkflow which is using MAST service to get a VOTable of FITS file URLs and other metadata. Let’s make a request using SIAP protocol The VOTable is shown to the user through VOTableviewer processor inside MASTSIAP. At this stage the user has a free choice to select data sets of interest from the list returned from MAST. Web Enabled Source Identification with X-matching WESIX

6. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland Web Enabled Source Identification with X-matching MAST PLASTIC is a protocol for communication between client-side astronomy applications CDS XML Web Services server Centre de Données astronomiques de Strasbourg Sesame Name Resolver The Multimission Archive at STScI (MAST) Simbad / NED / VizieR url: fits PLASTIC Hub ”Send url: fits to Aladin” url: fitsurl: fits ”url: fits from Reflex” url: fitsurl: fits ”Send to Aladin” ” from Reflex” Catalog ”Get catalog for url: fits” url: fitsurl: fits Catalog for url: fits url: fitsurl: fits WESIX Get FITS for url: fits url: fitsurl: fits FITS for url: fits url: fitsurl: fits A Plastic Hub is used to transfer the URL of the selected FITS file to the Aladin software using the urlviapalstictoAladin processor. To get a catalog for the selected picture request is send to WESIX service. The WESIX processor save the received catalog to local file … … and send name of the file to Aladin via PLASTIC. Aladin reads the local catalogue file...... and makes a new request to the MAST service in order to get the actual FITS image. The combined image and overlayed catalogue is shown in the work space of the Aladin. One more time... Jatkuu

7. Tero Oittinen 31.05.2007 Sampo Team Department of Astronomy University of Helsinki,Finland Authors Pekka Järveläinen (CSC - Scientific Computing Ltd) Tero Oittinen (Observatory, University of Helsinki) Richard Hook (ST-ECF / ESO) Sami Maisala (Observatory, University of Helsinki) Marko Ullgrén (Observatory, University of Helsinki) Ville Savolainen (CSC - Scientific Computing Ltd) Jatkuu